Throughout the world, Серг (Serg 
, Серг 
) is quite a rare male forename. The first name Серг is characteristic of Moldova, where it is quite a rare male name, Belarus, and Latvia, where it is a rare male name. In absolute terms, it most frequently occurs in Eastern Europe, particularly Russia, Moldova, and Belarus. Very seldom, Серг is the last name as well as the forename.